I've been trying to find a vintage Montrose in my size for years. A belt does go through the loops. A Jabot shirt and cuffs and you're set. What is the fitment issue? I've also seen a Jabot dickie and false cuffs worn with just a t-shirt under the Montrose for warmer climates. The jacket should fit like a glove to be correct. Do an internet search and you should find some good pictures for comparison. Here is a link to a Montrose that is just a little too big around the waist. http://www.nicolsonhighlandwear.co.u...&g=GAE&s=MMVMD

Good luck, O'Neille